SDR SWAA2023041415636

Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date: March 11, 2023
Submitted: April 14, 2023
Operation: Air carrier
Aircraft: N221WN
Make and model: Boeing 7377H4
Aircraft serial: 34259
Aircraft time: 58,906 hours, 34,822 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Intercostal
Condition: Cracked
Location: Zn 200 Fus Top
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CRACK ON WEB INTERCOSTAL FLOOR STRUCTURE LOCATED BTW BS 312 TO BS 328 LBL 46.5 AT FWD GALLEY AREA 2023-185226<[01] REPLACED WEB INTERCOSTAL LOCATED BTW BS 312 TO BS 328 LBL 46.5 AT FWD GALLEY AREA IAW B737-700 SRM 51-10-02; 51-40-02 AND DWG 141A5400 REV-.SEE INDIVIDUAL SIGN OFF BELOW.;[02] REPLACED WEB INTERCOSTAL LOCATED BTW BS 312 TO BS 328 LBL 46.5 AT FWD GALLEY AREA IAW B737-700 SRM 51-10-02; 51-40-02 AND DWG 141A5400 REV-.RII;SEE INDIVIDUAL SIGN OFF BELOW.

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